Bio: Lesson Three Chp 8.1

Robert Hooke

Anton van Leeuwenhoek

Matthias Schleiden

Theodor Schwann

All living things are made up of cells.

Cells are the basic units of structure and function in living things.

New cells are produced from existing cells.

Cells can only be seen with an electron microscope.

Prokaryotic cells have a nucleus, eukaryotic cells do not.

Eukaryotic cells have a nucleus, prokaryotic cells do not.

Both prokaryotic and eukaryotic cells have nuclei.

Neither prokaryotic nor eukaryotic cells have nuclei.

They caused mass extinction of other organisms.

They released oxygen, changing the atmosphere and enabling plant and animal life.

They made the environment more acidic.

They decreased the amount of sunlight reaching Earth.